CVE-2019-19006
Sangoma FreePBX Improper Authentication Vulnerability
Sangoma FreePBX
Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 3 February 2026. US federal agencies were required to remediate it by 24 February 2026.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 54.7%, which is higher than 99% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2019-19006 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2019-19006.
What does CVE-2019-19006 affect?
CVE-2019-19006 affects Sangoma FreePBX. Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.
How severe is CVE-2019-19006?
CVE-2019-19006 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 54.7%, higher than 99% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 24 February 2026.
How should organisations respond to CVE-2019-19006?
Apply the vendor patch for Sangoma FreePBX as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.